li a {
    color: green;
}
body {
    background: white url("images/background.png") no-repeat;
}

.btn-admin {
    background: #9b59b6;
    color: white;
}

.btn-admin:hover {
    background: #8e44ad;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}